Evidence map›Paper›PMID 30445040›Full record

ArticleCell2018

Structural Basis of Membrane Protein Chaperoning through the Mitochondrial Intermembrane Space.

Katharina Weinhäupl, Caroline Lindau, Audrey Hessel, Yong Wang, Conny Schütze, Tobias Jores, Laura Melchionda, Birgit Schönfisch, Hubert Kalbacher, Beate Bersch and 5 more

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
5.8field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

55 citing papers in PubMed, 115 citations in OpenAlex.

  1. Article
  2. Article
  3. Dynamic disorder is crucial for mitochondrial protein import.Protein science : a publication of the Protein Society · 2026
    Review
  4. From the cytosol to the inner membrane: biogenesis of the mitochondrial carrier family.Protein science : a publication of the Protein Society · 2026
    Review
  5. Article
  6. A dynamic displacement mechanism drives protein import into mitochondria.bioRxiv : the preprint server for biology · 2026
    Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Modular Assembly of Mitochondrial β-Barrel Proteins.Methods in molecular biology (Clifton, N.J.) · 2024
    Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 5 institutions in 3 countries.

Katharina WeinhäuplInstitut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 71 Avenue des Martyrs, 38000 Grenoble, France.
Caroline LindauInstitute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany.
Audrey HesselInstitut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 71 Avenue des Martyrs, 38000 Grenoble, France.
Yong WangStructural Biology and NMR Laboratory, the Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, 2200 Copenhagen, Denmark.
Conny SchützeInstitute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany.
Tobias JoresInterfaculty Institute of Biochemistry, University of Tübingen, 72076 Tübingen, Germany.
Laura MelchiondaInstitute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany.
Birgit SchönfischInstitute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany.
Hubert KalbacherInterfaculty Institute of Biochemistry, University of Tübingen, 72076 Tübingen, Germany.
Beate BerschInstitut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 71 Avenue des Martyrs, 38000 Grenoble, France.
Doron RapaportInterfaculty Institute of Biochemistry, University of Tübingen, 72076 Tübingen, Germany.
Martha BrennichEuropean Molecular Biology Laboratory, 38042 Grenoble, France.
Kresten Lindorff-LarsenStructural Biology and NMR Laboratory, the Linderstrøm-Lang Centre for Protein Science, Department of Biology, University of Copenhagen, 2200 Copenhagen, Denmark.
Nils WiedemannInstitute of Biochemistry and Molecular Biology, ZBMZ, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; BIOSS Centre for Biological Signalling Studies, University of Freiburg, 79104 Freiburg, Germany. Electronic address: nils.wiedemann@biochemie.uni-freiburg.de.
Paul SchandaInstitut de Biologie Structurale (IBS), Univ. Grenoble Alpes, CEA, CNRS, 71 Avenue des Martyrs, 38000 Grenoble, France. Electronic address: paul.schanda@ibs.fr.
University of Freiburg · DECentre National de la Recherche Scientifique · FRUniversity of Tübingen · DEUniversity of Copenhagen · DKEuropean Molecular Biology Laboratory · FR

Funding

European Research Council 311318European Research Council 648235
6 · The paper itself

Abstract

The exchange of metabolites between the mitochondrial matrix and the cytosol depends on β-barrel channels in the outer membrane and α-helical carrier proteins in the inner membrane. The essential translocase of the inner membrane (TIM) chaperones escort these proteins through the intermembrane space, but the structural and mechanistic details remain elusive. We have used an integrated structural biology approach to reveal the functional principle of TIM chaperones. Multiple clamp-like binding sites hold the mitochondrial membrane proteins in a translocation-competent elongated form, thus mimicking characteristics of co-translational membrane insertion. The bound preprotein undergoes conformational dynamics within the chaperone binding clefts, pointing to a multitude of dynamic local binding events. Mutations in these binding sites cause cell death or growth defects associated with impairment of carrier and β-barrel protein biogenesis. Our work reveals how a single mitochondrial "transfer-chaperone" system is able to guide α-helical and β-barrel membrane proteins in a "nascent chain-like" conformation through a ribosome-free compartment.

Indexed as

Amino Acid SequenceBinding SitesIntracellular MembranesMitochondriaMitochondrial Membrane Transport ProteinsMolecular ChaperonesMolecular Dynamics SimulationMutagenesis, Site-DirectedProtein BindingProtein DomainsProtein PrecursorsProtein Structure, SecondarySaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsSequence AlignmentMitochondrial Membrane Transport ProteinsMolecular ChaperonesProtein PrecursorsSaccharomyces cerevisiae Proteinsbinding by aviditymembrane proteinmitochondriamolecular dynamics simulationNMR spectroscopyprotein importprotein translocationsmall-angle X-ray scatteringTIM complextransfer-chaperone

Identifiers

PMID30445040
PMCPMC6242696
OpenAlexW2901074567

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.